Designed for use with GM 60 to 80 amp alternators, these Serpentine Conversion Kits incorporate genuine Billet Specialties style, quality, fit, and finish. Brackets and pulleys are machined from billet aluminum, polished to a mirror finish, and powdercoated clear for superior protection and cleaning ease. The kits are engineered to bolt-on and align correctly right out of the box. Stainless steel hardware and turnbuckles and QA1 high-quality rod ends are included.